HomeFish encyclopediaRay-finned fishesPerch-like fishPorgiesFrenchman seabream Frenchman seabream (Polysteganus baissaci) Scientific name: Polysteganus baissaci Smith, 1978 The Frenchman seabream (Polysteganus baissaci) is a marine fish of the family Sparidae. Native range: Western Indian Ocean, known only from off Mauritius and Madagascar. BiologyOccurs around reefs and on sandy bottoms.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePolysteganus baissaciFamilySparidae (Porgies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length27.9Common length35.0Depth range80–100 m (262–328 ft)EnvironmentMarine; demersal; depth range 80 - 100 mClimateTropicalDistributionWestern Indian Ocean: known only from off Mauritius and Madagascar.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026